Linear Functions and Tables

What is the function of the table?

• y=x+3

• y=x*3

• y=x÷3

• y=x-3

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

Greg gets paid $6 an hour working in a garden. Use the equation m=6h, where m is the money he makes, and h is the hours he works. How much money does he make if he works 9 hours?

• $15

• $3

• $54

• $53

Write the equation.

• f(x) = -5x + 1

• f(x) = x + 5

• f(x) = -2x

• f(x) = -5x + 6

Write the equation.

• f(x) = 3x - 7

• f(x) = 3x - 1

• f(x) = 3x - 4

• f(x) = 2x + 3

Jenny writes the equation y = 1/2x +5.
Why is she incorrect?

• The slope is -2, the equation should be
  y = -2x + 5

• The y-intercept is 4, the equation should be y = -2x + 4

• The slope is -1/2, the equation should be
   y = -1/2x + 5

• The y-intercept is -5, the equation should be y = -2x - 5

Write the equation with a slope of -3 and a y-intercept of (0, 4).

• y = -3x + 4

• y = -12x

• y = x + 4

• y = 4x - 3

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

• c = 2.75b + 4

• c = 2.75b

• c =  4b- 2.75

• c = 2.75b - 4

Elliot wants to sign up for a gym membership. The gym require a $35 fee to sign up, then $12 every month. Write an equation to find the amount Elliot will pay for his gym membership "y" after "x" amount of months.

• y = 35x + 12

• y = 12x + 35

• y = 12x - 35

What is the equation of the graph?

• 
• y = x + 1

• y = x * 1

• y = 21